He said: “When a [rape] allegation is made it’s often very difficult to prove but also very difficult to refute and those accused can suffer from the stigma attached. “Every false allegation of rape increases the plight of those women who are genuinely victims of rape.

“It makes their allegations harder to prove as juries are concerned at the possibility of convicting an innocent man.”

Jones was living with her father and stepmother in Aberbargoed when she claimed she had been attacked in the early hours of the morning following a night out.

A recovering heroin addict, Jones had been welcomed into the family home on Cwrt-Coch Street on the condition she adhere to an 11pm curfew. But when she arrived home at 4.20am on October 2 last year her clothes were torn and dirty, and she claimed she had been raped.

A judge at Cardiff Crown Court heard the 27-year-old gave police a description of the alleged rapist, which led officers to subsequently arrest a homeless man. He was then held in police custody for more than 16 hours and subjected to intimate physical examinations before he was released without charge.

During further interviews with police, Jones said she had left a nightclub in the town with another reveller who then went on to attack her. Officers then arrested the second man – remanding him in custody for nearly six hours and also subjecting him to intimate physical examinations. Yet police uncovered Jones’ lies when they reviewed CCTV pictures of Bargoed train station, which showed her embracing and kissing the man she claimed attacked her.

Footage also showed Jones’ clothing was undamaged when she and the man had separated. John Probert, prosecuting, said she admitted lying when she was arrested three weeks after the initial claim. He said: “She admitted she hadn’t told the truth and that she had had consensual sex.

“There had been arguments with her father and stepmother and she feared another argument on this occasion.”

The court heard Jones, who is expecting a fifth child with her new partner, had appeared in court on five previous occasions in relation to 13 offences.

Karl Williams, defending said: “It does appear this relatively young woman acknowledges the wrong that she has done and acknowledges that she’s trying to take control of her life.

She now has the support of her partner and his family and she is optimistic for the future.” Judge Hopkins QC jailed her for two years and eight months.